woocommerce order checkup before shipping

woocommerce order checkup i have multiple orders in woocommerce what i want to do that once order processing and once prepare shipment , i want the shop manger who prepare the package to check all items that have been prepared against the once registered in the order so he confirm that the package is completely ready and not missing any item , so simply you need to create a php file with [login to view URL] so you can use all WP and WC libs and you will ask user for his username and password . then in that screen you will ask the user to enter the order number , after that you will load the order item somewhere hidden for checking and show user another page and ask what the items that current package contains , the user will put the sku number and the quantity for every item and add that to jquery cookie or session (do not move him out of the page) and make table with jquery that show him the items he added and after that a button to Confirm Checkup , if he don't prepare it correctly you will show him error that package is not identical with order items or missing something and you will show him what is missing in the order. hope i am clear this is piece of cake for WP AND WC Professionals , so i need it in 24 hour . thanks .